Jönssonligan & den svarta diamanten

本片由Hans Åke Gabrielsson导演Thomas Segerström,Karl Erik Andersen,乌尔夫·布鲁恩伯格主演，于未知瑞典上映！

Sickan, the leader of the criminal Jönsson gang is incarcerated in a mental institution, attended by Dr M.A. Busé, who admire a handbook in crime that Sickan has been writing. Blackmailed by the nefarious banker Wall-Enberg, Dr Busé and Sickan's partners Vanheden and Dynamite-Harry execute Sickan's plan of stealing the valuable Black Diamond of the Romanovs from the National Museum.